CVE-2017-1000434 : Exploit Details and Defense Strategies

Wordpress plugin Furikake version 0.1.0 is vulnerable to an Open Redirect security issue that allows attackers to redirect users to malicious pages.

Understanding CVE-2017-1000434

What is CVE-2017-1000434?

Version 0.1.0 of the Wordpress plugin Furikake contains a security vulnerability related to an Open Redirect, enabling attackers to manipulate the furikake-redirect parameter to redirect users to a page controlled by the attacker.

The Impact of CVE-2017-1000434

This vulnerability poses a risk of unauthorized redirects to malicious websites, potentially leading to phishing attacks or the installation of malware on users' devices.

Technical Details of CVE-2017-1000434

Vulnerability Description

The vulnerability exists in the classes/Furigana.php file, where the redirect is initiated using the header function and the furikake-redirect parameter extracted from the URL after being decoded using the urldecode function.

Affected Systems and Versions

Product: Wordpress plugin Furikake
Version: 0.1.0

Exploitation Mechanism

Attackers can exploit the furikake-redirect parameter on a webpage to redirect users to a page under their control, potentially leading to further security breaches.

Mitigation and Prevention

Immediate Steps to Take

Update the Furikake plugin to the latest version that addresses the Open Redirect vulnerability.
Monitor website traffic for any suspicious redirection activities.

Long-Term Security Practices

Regularly audit and update plugins and extensions to mitigate security risks.
Educate users about the dangers of following unexpected or suspicious links.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are addressed and website security is maintained.